Iran is led by a religious theocracy that has long agitated against the U.S. The Iranian government sponsors terrorist groups that have killed U.S. troops. Iran also threatens allies such as Israel and our partners in the Gulf. Iran is a powerful regional actor with a population of 75 million – twice that of Iraq. You have decided that Iran will not be allowed to gain a nuclear weapon because of the government’s extremism and hostility and it could set off an arms race in the region.